JWST, Part 2 at L3

[CrusaderFrank]

interstellar visitor 3I/Atlas is in a position that prohibits observation by Hubble or JWST, they cannot point to within 50, or 80 degrees of the Sun

JWST orbits at L2, Lagrange Point 2

If there was another JWST would it make a difference to have it at L3, or 4 or 5 or one at each point?

 

[ReinyDays]

interstellar visitor 3I/Atlas is in a position that prohibits observation by Hubble or JWST, they cannot point to within 50, or 80 degrees of the Sun

JWST orbits at L2, Lagrange Point 2

If there was another JWST would it make a difference to have it at L3, or 4 or 5 or one at each point?

View attachment 1167562

JWST is an infrared telescope ... the L2 position is in perpetual shadow ... so it's really cold there ... -225ºC IIRC ... that's important because we don't want our images contaminated by the telescope's own radiation ... the colder the equipment, the better the results ... the "L2"-ness of the position is nice, but it's the shadow we want ...

3I/Atlas is moving far too fast for these space-based telescopes to track ... they're designed for "deep sky" work, billions of light years away ...

At magnitude 11.6, it should be visible with an amateur telescope ... see if the local club is having any star parties in the near future ...

 

[CrusaderFrank]

JWST is an infrared telescope ... the L2 position is in perpetual shadow ... so it's really cold there ... -225ºC IIRC ... that's important because we don't want our images contaminated by the telescope's own radiation ... the colder the equipment, the better the results ... the "L2"-ness of the position is nice, but it's the shadow we want ...

3I/Atlas is moving far too fast for these space-based telescopes to track ... they're designed for "deep sky" work, billions of light years away ...

At magnitude 11.6, it should be visible with an amateur telescope ... see if the local club is having any star parties in the near future ...

Thank you

 

[CrusaderFrank]

JWST is an infrared telescope ... the L2 position is in perpetual shadow ... so it's really cold there ... -225ºC IIRC ... that's important because we don't want our images contaminated by the telescope's own radiation ... the colder the equipment, the better the results ... the "L2"-ness of the position is nice, but it's the shadow we want ...

3I/Atlas is moving far too fast for these space-based telescopes to track ... they're designed for "deep sky" work, billions of light years away ...

At magnitude 11.6, it should be visible with an amateur telescope ... see if the local club is having any star parties in the near future ...

Does Venus or Mars have similar Lagrange Points? If so, that could be one way to cover more of the sky

 

[ReinyDays]

Does Venus or Mars have similar Lagrange Points? If so, that could be one way to cover more of the sky

They do indeed have the same Lagrange Points ... I think JWST covers all the sky, just half at a time ... and we can wait six month for the other half ...

You know from the climate threads that our atmosphere greatly interferes with the infrared ... so above the atmosphere, JWST sees things we've never seen before ... we've been blind in that part of the spectrum ... like playing 5-card stud with the universe, and we're just now getting a look at the hole card ...

 

[CrusaderFrank]

They do indeed have the same Lagrange Points ... I think JWST covers all the sky, just half at a time ... and we can wait six month for the other half ...

You know from the climate threads that our atmosphere greatly interferes with the infrared ... so above the atmosphere, JWST sees things we've never seen before ... we've been blind in that part of the spectrum ... like playing 5-card stud with the universe, and we're just now getting a look at the hole card ...

Maybe having JWST telescopes at the L2 point at Mercury, Mars AND Venus can cover 80, 90, 98% or more of the sky?

 

[ReinyDays]

Maybe having JWST telescopes at the L2 point at Mercury, Mars AND Venus can cover 80, 90, 98% or more of the sky?

Just write the checks ... and raise taxes ... that would be a very expensive project ... remember, so far half our attempts to send probes to Mars have failed ... it took $10 billion and 20 years to make one infrared telescope ... I don't think the Trump Administration will sign off on such ap=rojwcy project ...

Nothing out there moves, so we do have plenty of time to see all of it ...

 

[CrusaderFrank]

Just write the checks ... and raise taxes ... that would be a very expensive project ... remember, so far half our attempts to send probes to Mars have failed ... it took $10 billion and 20 years to make one infrared telescope ... I don't think the Trump Administration will sign off on such ap=rojwcy project ...

Nothing out there moves, so we do have plenty of time to see all of it ...

Space X seems to have no problems with the rockets

$10B for an infrared telescope? Sounds like how government solved affordable housing

 

[22lcidw]

Just write the checks ... and raise taxes ... that would be a very expensive project ... remember, so far half our attempts to send probes to Mars have failed ... it took $10 billion and 20 years to make one infrared telescope ... I don't think the Trump Administration will sign off on such ap=rojwcy project ...

Nothing out there moves, so we do have plenty of time to see all of it ...

The original cost was around several hundred million dollars. This is why we must privatize a lot for our space endeavors. The new gantry for the Space Launch System replacing the older one because the Space Launch system is supposed have a larger rocket with the 3rd mission onward was supposed to cost 200 million dollars. It is now 2 billion dollars and counting. Grand dreams for the moon cannot be made at these costs.

 

[ReinyDays]

Space X seems to have no problems with the rockets

$10B for an infrared telescope? Sounds like how government solved affordable housing

HUD budget is $300 billion this year? ... and you're vexxed by $10B over 20 years? ... affordable housing is a myth and you know it ... if you want beggars, thieves and whores to have housing, raise taxes and just give them this "affordable" housing ...

How much should a cutting-edge top-of-the-line bestest telescope in the whole solar system cost? ... 20 years to build seems rushed ... keep in mind JWST is three times the diameter of Hubble ... mirror diameter is the only measure of a telescope's light gathering ability ...

 

[CrusaderFrank]

HUD budget is $300 billion this year? ... and you're vexxed by $10B over 20 years? ... affordable housing is a myth and you know it ... if you want beggars, thieves and whores to have housing, raise taxes and just give them this "affordable" housing ...

How much should a cutting-edge top-of-the-line bestest telescope in the whole solar system cost? ... 20 years to build seems rushed ... keep in mind JWST is three times the diameter of Hubble ... mirror diameter is the only measure of a telescope's light gathering ability ...

I was being sarcastic with “government solving affordable housing”

Seriously, how many JWST could Space X build with $10B? 5, 10, 20? With each one an improvement over the last

 

[ReinyDays]

I was being sarcastic with “government solving affordable housing”

Seriously, how many JWST could Space X build with $10B? 5, 10, 20? With each one an improvement over the last

You bet ... 20 foot mirrors are super easy to make ... oh boy and there's just millions on infrared telescopes out there ... easy peasy throwing them up into orbit ... middle school science faire project material ...

SpaceX could also build a dozen Large Hadron Colliders ... but I think they're leaving that to the hobbyists ...

 

[CrusaderFrank]

You bet ... 20 foot mirrors are super easy to make ... oh boy and there's just millions on infrared telescopes out there ... easy peasy throwing them up into orbit ... middle school science faire project material ...

SpaceX could also build a dozen Large Hadron Colliders ... but I think they're leaving that to the hobbyists ...

Look what they're doing to rocketry

 

[ReinyDays]

Look what they're doing to rocketry

Rocketry is easy ... point and shoot ... orbital telescopes, not so easy ...